#1  
Old 06-20-2010, 07:14 AM
Peasant
 
Join Date: Feb 2010
Location: Boston
Posts: 41
Default Perlite ratio

I was searching on here and couldn't find the ratio I am supposed to use for the perlite concrete mix. My friend told me 7/1 but he said to come on here and check.
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  #2  
Old 06-20-2010, 09:06 AM
Master Builder
 
Join Date: Jul 2009
Location: Los Angeles
Posts: 942
Default Re: Perlite ratio

Hi, I saw your project at the pizza site.
I made a similar inquiry a few days ago on this here:
http://www.fornobravo.com/forum/f8/m...ete-13238.html (Molding vermicrete)

Good luck with your new oven!

George
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Old 06-20-2010, 11:40 AM
Neil2's Avatar
Il Pizzaiolo
 
Join Date: Oct 2006
Location: Vancouver Island
Posts: 1,374
Default Re: Perlite ratio

I use a 5:1 mix for the load bearing 4 inch layer under the hearth. I used a 12:1 mix for the non load bearing 4 inch layer on top of the dome.
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Old 06-20-2010, 12:18 PM
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Apprentice
 
Join Date: Apr 2010
Location: Utah
Posts: 188
Default Re: Perlite ratio

I used a 6-1 ratio for my 4 in layer underhearth portion. It worked well, mix the dry together first and then fold in the water to the mix gently. Cover and let it dry slowly, be patient.
Derk
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Old 06-21-2010, 09:28 AM
Peasant
 
Join Date: Feb 2010
Location: Boston
Posts: 41
Default Re: Perlite ratio

I am going to fill in the gap on top of the dome. So 12:1 works good? I don't want it to be to heavy because its on top of the dome. Also does anyone know where I can buy the Fiberfrax Dura blankets in the Massachusetts area, I kinda need it asap.

Thanks FXpose I have been watching your thread, you are doing an awesome job with the oven. The vent looks sick.
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